diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-4.19/700-net-add-qualcomm-mdio.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-4.19/700-net-add-qualcomm-mdio.patch | 80 |
1 files changed, 76 insertions, 4 deletions
diff --git a/target/linux/ipq40xx/patches-4.19/700-net-add-qualcomm-mdio.patch b/target/linux/ipq40xx/patches-4.19/700-net-add-qualcomm-mdio.patch index e939597b8e..4be25186e6 100644 --- a/target/linux/ipq40xx/patches-4.19/700-net-add-qualcomm-mdio.patch +++ b/target/linux/ipq40xx/patches-4.19/700-net-add-qualcomm-mdio.patch @@ -1,6 +1,20 @@ +From 234d6f40fb4b771b396b45a9492aab463771bd0b Mon Sep 17 00:00:00 2001 +From: Kristian Evensen <kristian.evensen@gmail.com> +Date: Tue, 6 Aug 2019 11:42:57 +0200 +Subject: [PATCH] phy: Add ipq40xx mdio driver + +--- + drivers/net/phy/Kconfig | 7 + + drivers/net/phy/Makefile | 1 + + drivers/net/phy/mdio-ipq40xx.c | 247 +++++++++++++++++++++++++++++++++ + 3 files changed, 255 insertions(+) + create mode 100644 drivers/net/phy/mdio-ipq40xx.c + +diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig +index 1f5fd24cd..eb71b47a3 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig -@@ -519,6 +519,13 @@ config XILINX_GMII2RGMII +@@ -436,6 +436,13 @@ config XILINX_GMII2RGMII the Reduced Gigabit Media Independent Interface(RGMII) between Ethernet physical media devices and the Gigabit Ethernet controller. @@ -14,9 +28,11 @@ endif # PHYLIB config MICREL_KS8995MA +diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile +index f21cda9d8..804c52634 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile -@@ -48,6 +48,7 @@ obj-$(CONFIG_MDIO_CAVIUM) += mdio-cavium +@@ -33,6 +33,7 @@ obj-$(CONFIG_MDIO_CAVIUM) += mdio-cavium.o obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o obj-$(CONFIG_MDIO_HISI_FEMAC) += mdio-hisi-femac.o obj-$(CONFIG_MDIO_I2C) += mdio-i2c.o @@ -24,9 +40,12 @@ obj-$(CONFIG_MDIO_MOXART) += mdio-moxart.o obj-$(CONFIG_MDIO_MSCC_MIIM) += mdio-mscc-miim.o obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o +diff --git a/drivers/net/phy/mdio-ipq40xx.c b/drivers/net/phy/mdio-ipq40xx.c +new file mode 100644 +index 000000000..88fe5dc2b --- /dev/null +++ b/drivers/net/phy/mdio-ipq40xx.c -@@ -0,0 +1,196 @@ +@@ -0,0 +1,247 @@ +/* + * Copyright (c) 2015-2016, The Linux Foundation. All rights reserved. + * @@ -49,8 +68,10 @@ +#include <linux/io.h> +#include <linux/of_address.h> +#include <linux/of_mdio.h> ++#include <linux/of_gpio.h> +#include <linux/phy.h> +#include <linux/platform_device.h> ++#include <linux/gpio.h> + +#define MDIO_CTRL_0_REG 0x40 +#define MDIO_CTRL_1_REG 0x44 @@ -150,11 +171,60 @@ + return 0; +} + ++static int ipq40xx_phy_reset(struct platform_device *pdev) ++{ ++ struct device_node *mdio_node; ++ int phy_reset_gpio_number; ++ int ret; ++ ++ mdio_node = of_find_node_by_name(NULL, "mdio"); ++ if (!mdio_node) { ++ dev_err(&pdev->dev, "Could not find mdio node\n"); ++ return -ENOENT; ++ } ++ ++ ret = of_get_named_gpio(mdio_node, "phy-reset-gpio", 0); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "Could not find phy-reset-gpio\n"); ++ return ret; ++ } ++ ++ phy_reset_gpio_number = ret; ++ ++ ret = gpio_request(phy_reset_gpio_number, "phy-reset-gpio"); ++ if (ret) { ++ dev_err(&pdev->dev, "Can't get phy-reset-gpio %d\n", ret); ++ return ret; ++ } ++ ++ ret = gpio_direction_output(phy_reset_gpio_number, 0x0); ++ if (ret) { ++ dev_err(&pdev->dev, ++ "Can't set direction for phy-reset-gpio %d\n", ret); ++ goto phy_reset_out; ++ } ++ ++ usleep_range(1000, 10005); ++ ++ gpio_set_value(phy_reset_gpio_number, 0x01); ++ ++phy_reset_out: ++ gpio_free(phy_reset_gpio_number); ++ ++ return ret; ++} ++ +static int ipq40xx_mdio_probe(struct platform_device *pdev) +{ + struct ipq40xx_mdio_data *am; + struct resource *res; -+ int i; ++ int i, ret; ++ ++ ret = ipq40xx_phy_reset(pdev); ++ if (ret) { ++ dev_err(&pdev->dev, "Could not find qca8075 reset gpio\n"); ++ return -ENODEV; ++ } + + am = devm_kzalloc(&pdev->dev, sizeof(*am), GFP_KERNEL); + if (!am) @@ -223,3 +293,5 @@ +MODULE_AUTHOR("Qualcomm Atheros"); +MODULE_VERSION(DRV_VERSION); +MODULE_LICENSE("Dual BSD/GPL"); +-- +2.20.1 |